diff --git a/html/StupidIABattleship.php b/html/StupidIABattleship.php
index bb1a55c..45f3640 100644
--- a/html/StupidIABattleship.php
+++ b/html/StupidIABattleship.php
@@ -3,7 +3,7 @@ function is_it_possible_to_place_ships_on_grid($gridWidth,$gridHeight,$nbShipsSi
   //return false or true
   //not a perfect solution
   $shipsArea=$nbShipsSize1 + 2 * $nbShipsSize2 + 3 * $nbShipsSize3 + 4 * $nbShipsSize4 + 5 * $nbShipsSize5 + 6 * $nbShipsSize6;
-  if( $shipsArea < $gridHeight * $gridWidth / 2){
+  if( $shipsArea > $gridHeight * $gridWidth / 2){
     return false;
   }
   //longest ship